<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<script src="jquery-2.0.3.js"></script>
<script>

$(function(){
	
	//alert( $('#div1').width() );
	
	//alert( $('#div1').get(0).offsetWidth );
	
	
	function show(){
		
		arguments.length
		
	}
	
	show();
	
});

</script>
</head>

<body>
<div id="div1" style="width:100px; height:100px; background:red;display:block; visibility:hidden; position:absolute;">aaaa</div>
</body>
</html>
